Why is there a burning smell coming from the samsung 50" plasma TV, I have replaced the buffer which had burned out I replaced it but now I am affraid it has burned out as well. What is causing this to happen

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a4.. there are 2 of them, upper and lower buffer boards.. they control the top and lower half of screen devided horizontally, i have had many run ins with these sets. and usually the buffer boards arent cheap.

they plug into the ysus( y sustain).. its possible your y sustain is blowing the buffer moduals because one of its i.c.'s under the heatsink has popped on ya.. effectively creating a short that blows the buffer boards.
remove the buffer boards, turn tv on... feel the 2 silver heat sinks on that y sustain( beware dont zap urself.. just the tip of your finger on the heatsinks)

you may find that one is cold and one is hot...if so, you need a new y sus and probably to replace the buffer boards the a4 upper and a4 lower.

If you get a new ysus.. plug the a4 upper and lowers into it, look at your picture.. if ur missing the top half the top buffer is blown or lower half the bottom buffer is blown. or..no picture they could both be blown..an easy way to tell if u have no picture to diagnose is..touch the heatsinks that sit over the chips on the buffers..if they are red hot.. they are bad and shorted internally.

picture woould blink on & off. sometimes ony half the screen would shoe. hitting the bottom of the set would reset the picture. then a electrical burning smell started & the picture went out for good. any ideas as to what it is?

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Related Questions:

Bad COF ic on buffer board. Can usually tell which one's bad. It will look overheated or a hole in top of ic. Look at upper and lower buffer boards to see which ic is bad. Can get from Encompas Parts, Recommended replace y sustain with buffer.

Tries tv unplung,replug it back like about an hour later.For the tv to do a resetting itself back to the factory setting.Tv now 50/50 the tv might work as normal again.If the tv dosen't.Tv have a dead 1 or 2 backlight buffers boards have to be replacing.These 2 long backlight buffers boards only job are to provided a tv plasma screen panel for a backlight to see the picture.Tv now the plasma screen panel have no backlight that why ur tv have only audio sound and no picture.No experience in tv repair and never done any electronic board parts replacement before.Best just call many tv shops and explain the tv situation it in and get the best quote prices for parts and labors.Best prices parts and labors should be around $400 is fair more than that as i said shops around for more tv repair shops.

A solid blue line would imply that the lower buffer PCB has a loose connector or a bad buffer. Some plasma TV have these buffer ICs build right into the ribbon connector of the panel. At any rate, if you plan to have the TV repaired, STOP USING IT. Plasma panels are notorious for burn-in when viewing stationary images (station logos, video games, etc.). The blue line IS stationary and if you keep watching it, you will see the effects even after you correct the original problem.

Hi,
welcome to fixya!
without doing voltage checks, my best guess is this:

Plasma hpr5053 or hps5053 models will burn out a buffer board or both, there are two buffers and the Y board.
I usually change all 3 at once, but if on a budget you can try to remove one buffer and see if you get half picture (upper or lower)
this is something only a technician should attempt. the boards cost $200 each (buffers)
$300-$400 (Y board).
if you actually get half a picture the Y and one buffer are good, a bad buffer usually burns out the Y board. and in really bad cases the panel is bad also (not common, but possible)
For part#s , specific help you can post a model# , but again this is a repairmans job not something the average customer can fix.
hope this helps
Eric